Hi, I updated the firmware to 1.1a (from 1.0d). Same problem. I checked some older DVDs I wrote and there are a couple of Sankey DVD-R that give the same media info, but don't show this error. Tried with older dvd+rw-tools which I used at that time, same error. One thing left to do : try with WindowsXP and see if I get the same problem. bye, krajo